Harrow.



I PATENTED JUNE 4, 1907. LE. WHEATONL HARROW. APPLIUATION PILED-8BP1,22,1908.

T No. 856,009.

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' No. 856,009. PATENTED JUNE 4,1907.

J. B. WHEATON.

HARROW.

APPLICATION FILED. SEPT. 22. 1906.

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UNITED STATES PATENT orrron.

JOHN E. WHEATON, OF GENESEO, ILLINOIS.

HARROW.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed September 22, 1906. Serial No. 335,755.

the following is a specification.

This invention relates to improvements in harrows, and particularly tothose of the drag type and composed of two or more sections, one of theobjects of the invention being to provide an improved construction inwhich the drag bars will act effectively in conjunction with the teethto thoroughly break up and pulverize the soil.

Another object is to provide an improved construction of drag bar andmeans for mounting the harrow teeth thereon, as well as improved meansfor connecting and adjusting the bars whereby the teeth and bars may beset at a desired working angle.

Another object is to provide a construction of harrow in which theadjacent ends of the harrow sections break joint or overlap, so thattheintervening space will be covered by the bars and teeth, thusadapting the harrow to operate upon the soil without break along thelength thereof.

A still further object is to provide an improved construction of seatsupport and means for holding the same in operative position, saidsupportbeing readily removable to render the implement capable for useas a walking or riding harrow at will( IVith the above and other objectsin view, the invention consists of the novel construc tion, combinationand arrangement of parts hereinafter fully described and claimed,reference being had to the accompanying drawings, in which Figure 1 is atop plan view of a harrow constructed in accordance with my invention.Figs. 2 and 3 are front to rear sections on the lines 2-2 and 33 ofFig. 1. Fig. 4 is a perspective view, partly broken away, of the seatsupport. Fig. 5 is a detail view in fragmentary perspective of one ofthe drag bars. Fig. 6 is a detail view of one of the harrow teeth andthe means for fastening the same to the drag bar. Fig. 7 is a viewshowing a modified construction of drag bar and harrow teeth andfastening therefor. Fig. 8 is a horizontal section through the same.Fig. 9 is a detail section I through the seat and upper connectingportions of its supports.

Referring to the drawings, 1 and 2 designate the harrow sections, eachof which comprises a series of drag bars 3, preferably three in number,the drag bars of the two sections being arranged in longitudinalalinement. The drag bars of each section. are connected and held inassembled relation by superposed links 4 and 5. The links 4 connect thebars adjacent their ends, said links having downturned front and rearends 6 pivotally connected with ears 7 on the front and rear drag bars.Each of said links is provided with a bracket piece 8 bolted or rivetedthereto and having a downturned end pivotally connected with a similarear on the intermediate drag bar. This construction and. mode ofsupporting the drag bars from the links permits said bars to be swungfreely to adjust them and the teeth carried thereby to any desiredworking angle within their range of adjustment.

The central link 5 is connected with the drag bars in a differentmanner, the bars be ing suspended therefrom by curved hanger arms 8pivoted at their upper ends to the links, as indicated at 9, and engagedat their lower ends by clips 10 through which and the arms pass bolts orrivets connecting the same with the drag bar. The rear arm 8 isconnected by a short link 12 with an adjusting lever 13 pivoted to thesupporting link 5, which lever is provided with a pawl or dog 14arranged to engage notches in a rack 15 fixed to said supporting link.The notches are so arranged that when the lever isv in normal orintermediate position, the drag bars and teeth will be held at theproper normal working angle, at such a rearward inclination as to adaptsuch parts to work the most effectively on the soil while permitting ofthe passage of the teeth.

Each drag bar is preferably formed of angle iron or steel, and as shownin the present instance is L-shaped, the longer web 3 thereof beingarranged vertically and the shorter web 3 horizontally and extendingrearwardly from the lower edge of said vertical web. By thisconstruction and arrangement the web 3 forms a shield or barrier toprevent the loosened earth from working upward over the bar and throwsweeds and other trash between and beneath ICO it downward in advance ofthe teeth, while the web-3 forms a support for the teeth, and a breakingangle 16'is provided at the lower forward corner of the bar tothoroughly crush all clods as the bar drags over the soil. It will beobserved that the alined drag bars of the two sections 1 and 2 are ofrelatively different lengths, and that such arrangement alternates fromfront to rear through the series of bars, so that the front, rear andintermediate bars are caused to break joint or overlap at the inner ormeeting ends of the sections, thus enabling the teeth of the bars to beso arranged as to work upon all portions of the earth within the area ofthe harrow. By this means the portion of earth between the harrowsections usually left unworked by the wide separation of the K teethbetween said sections will be thoroughly worked, thus uniformlyharrowing the ground.

The harrow teeth 17 are arranged upon the drag bars at desired intervalsapart, and each tooth is firmly and yet detachably fastened to the bar,so that it may be conveniently removed when broken or injured and a newtooth as conveniently substituted in its place. As shown, each tooth 17is provided with an upwardly extending shank to pass upwardly through anopening 18 formed in the web 3 of the bar. The opening 18 is of angularform to snugly receive an angular portion 19 of the shank, whereby thetooth when'applied will be held from rotation. A head 20 is formed onthe 'shank to bear against the under side of the web 3 and hold thetooth from upward movement, and the u per portion of the shank isrounded and t readed, as at 21, for the reception of a clamping nut 22which fastens the tooth against downward movement, a split spring washer23 being preferably arranged between the nut and web to insure a tightconnection and prevent the nut from working loose. This constructionpermits the teeth to be readilyapplied and removed, as will be readilyunderstood.

In Figs. 7 and 8 I have shown a modification in the structure of bar andteeth and means for securing the latter in position, the bar 3 in thisembodiment.comprising a me- 'tallic plate formed or provided upon itsrear side with spaced longitudinal ribs 24, while the tooth 17 has itsshank formed with a recess 25 to receive said ribs and to produceshoulders engaging the ribs and holding the tooth from verticalmovement. A fastening bracket 26 is provided with a strap 27 en gagingthe reduced portion of the shank and projects partially between theribs, said bracket having a bore for the passage of a bolt 28 extendingthrough the plate and pro vided with a securing nut whereby the bracketis fastened in position to secure the tooth against longitudinalmovement on the bar. This construction also enables the tooth to beapplied and removed with facility. The teeth are preferablycomparatively short in length and are designed to fully enter the earth,allowing the bars to drag over the sur-' face thereof, by which theteeth will cut up the soil 'while the bars will break up all lumpyvparticles and reduce the loosened soil to a thoroughly pulver zedcondition.

A draw bar 30 is arranged at the front of the harrow in the usual mannerand is suitably connected therewith, as by chains 31, said bar beingprovided with a suitable draft connection 32 for the attachment of thedraft animals;

The seat supporting means, comprises a channeled supporting beam 33provided at its ends with coupling devices 34, each consisting of a rodmainly inclosed within the channel of the beam, said rod being providedat its inner end with an eye to engage a fastening stud 35 on the beamand at its outer end with an eye 36 projecting beyond the beam adaptedto engage a supporting pin or projection 37 carried by a bracket piece38, the bracket pieces being secured to or formed upon the intermediatelinks 5 of the harrow sections. These links 5 are connected with thedrag bars by the depending arms 8 in order to be arranged at a higherelevation than the inner end links 4, so that the supported beam 33 mayextend over said links 4, as shown in Fig. 1. A substantially invertedV-shaped bracket 39 rises from the beam and has its vertex portionflattened to form a rest.

for the seat 40 which is suitably fastened thereto. The free ordivergent ends of this bracket are bolted or riveted to the beam, andbraces 41 and 42 are provided to stay the bracket, the brace 41 beinarranged to connect the bracket arms, while the brace 42 ex tendsvertically between and connects the seat supportingportion of thebracket with the beam 33.

In order to secure the seat support in position, a brace or truss rod orbar 43 is provided to connect the same with the draw bar 30. This bracecomprises two sections 44 and 45 arranged. to overlap and slidably connected by bolts 46 on one section adjustable in longitudinal slots 47 inthe other section, whereby the brace may be adjusted as to length tosuit the different arrangement of the parts and to compensate fordifferences in the distance between the seat support and draw bar. Theupper'end of the section 44 may be secured to the crown of the brace 39in any preferred manner, as by a post or stem projecting from the seatdownward through openings in said crown portion and the brace 41, whichstem may also serve to secure to said brace 41 a supplemental brace 48extending from the part 44. The lower end of section 45 is apertured toengage a hook 49 on the draft bar. By this construction the seat and itssupport may be firmly held in position, while upon disconnecting thebrace 43 from the bracket 39 and unhooking it from the bar 30, thesupport may be detached from the harrow by lifting the beam so as towithdraw the eyes 36 from engagement with the holding pins 37, thuspermitting the seat and its support to be removed whenever it is desiredto convert the implement into a walking harrow.

Having thus described the invention, what is claimed as new, is

1. A harrow comprising a plurality of angular bars, each presentingvertical and horizontal webs, end and intermediate links pivotallyconnected to the vertical webs, harrow teeth supported by the horizontalwebs, and means associated with the intermediate link f(1)r adjustingthe bars to set at different ang es.

2. A harrow comprising a plurality of drag bars of angular form, eachpresenting vertical and horizontal webs, the vertical web being longerthan the horizontal web to form an earth-barrier, and the horizontal webextending rearwardly from the lower edge of the vertical web, wherebythe corner angle of said webs is disposed to form a breaking surface atthe lower front portion of the bar, links arranged above the bars, meanspendent from the links and pivotally connecting the vertical webstherewith, harrow teeth supported by the horizontal webs and adapted topenetrate fully into the soil to bring the breaking angles of the barsinto contact therewith, and means associated with one of said links foradjusting the bars to set at different angles.

3. A harrow comprising a plurality of parallel bars corresponding inconstruction and in the relative arrangement of the parts thereof, saidbars being of angular form, each presenting a vertical and a horizontalweb, the vertical web being longer than the horizontal web to form anearth-barrier, and the horizontal web extending rearwardly from thelower edge of the vertical web, whereby the corner angle of said webs isdisposed to form a breaking surface at the lower front portion of thebar, links arranged above the bars, harrow teeth supported by thehorizon tal webs and adapted to penetrate fully into the soil to bringthe breaking angles of the bars into contact therewith, links arrangedabove the bars, means pendent from the links and pivotally connectingthevertical webs of the bars therewith, and means for simultaneouslyadjusting said bars.

4. A harrow comprising a plurality of angular bars, each presentingvertical and horizontal webs, the vertical websbeing provided with lugs,harrow teeth supported by the horizontal webs, links having downturnedportions pivoted to the lugs, and means for adjusting the bars to set atd1fferent working angles.

5. A harrow comprising a plurahty of drag bars, harrow teeth supportedby the bars, end links having down-turned portions pivotally connectedwith the bars, an intermediate link, hangers pivoted to the intermediatelink and attached to the bars, and means associated with theintermediate link for adjusting the bars to set at different angles.

6. A harrow comprising a plurality of an gular drag bars, eachpresenting vertical and horizontal webs, harrow teeth carried by thehorizontal webs, end links having downturned portions pivotallyconnected with the vertical Webs, an intermediate link, brackets pivotedto the intermediate link and secured to the vertical webs, and meansassociated with the intermediate link for adjusting the bars to set atdifferent angles.

7. A harrow comprising a plurality of angular drag bars, each presentingvertical and horizontal webs, the former being provided with lugs, endlinks having downturned portions pivotally connected with the lugs,harrow teeth supported by the horizontal webs, an intermediate link,hangers pivoted to the intermediate link and depending therefrom andsecured to the vertical webs, and means associated with the intermediatelink for adjusting the bars to set at different angles.

8. A harrow comprising a plurality of angular drag bars, each presentingvertical and horizontal webs, harrow teeth supported by the horizontalwebs, end links directly pivoted to the vertical webs, an intermediatelink indirectly pivoted to the vertical webs, and means associated withthe intermediate link for adjusting the bars to set at different angles.

9. A harrow comprising a plurality of L- shaped drag bars, eachpresenting vertical and horizontal webs, the vertical webs being longerthan the horizontal webs and having the latter extending rearwardly fromthe lower edges thereof, teeth supported by the horizontal webs, thecorner angles of-the webs being arranged to provide breaking surfaces atthe lower front portions of the bars to cooperate with the teeth, endlinks directly pivoted to the vertical webs, an intermediate linkindirectly pivoted to the vertical webs, and means associated with theintermediate link for adjusting the bars to set at different angles.

10. A harrow comprising a plurality of angular drag bars, eachpresenting vertical and IIO horizontal webs, the latter extendingrearassociated with the intermediate link for adwardly from the loweredges of the former, justing the bars to set at different angles. 10lugs upon the vertical webs, end links having In testimony whereof, Iaffix my signature down-turned portions pivoted to said lugs, inpresence of two witnesses.

5 an intermediate link, hangers depending JOHN E. WHEATON.

from and pivoted to said link, clips engaging Witnesses: .v the lowerends of the hangers and securing E. S. Woons,

the same to the vertical webs, and means JNO. P. STEWART.

